Lenovo 4XB7A93784 internal hard drive 20 TB 7200 RPM 3.5" SAS3

Product Overview

AI-generated summary

This Lenovo 20TB 3.5" 7200RPM SAS drive is the sort of workhorse you buy when you need lots of capacity and you’re running a server/workload where SAS and enterprise uptime matter. At £842.53 ex-VAT it’s fairly sensible on cost-per-terabyte, and the 7200RPM spin helps if you’re dealing with sustained reads/writes (backup targets, bulk file storage, some RAID sets, general “keep the data moving” roles). If you already have a compatible backplane/server and the rest of your storage stack is SAS, you’ll likely be happy with it—these drives tend to slot into real environments without drama.

I’d be cautious if you’re buying this for anything consumer-ish, a DIY NAS, or a setup that doesn’t strictly benefit from SAS. You’re paying for the enterprise interface and robustness, and SAS doesn’t magically make RAID faster if the bottleneck is elsewhere (network, controller, disks aren’t the only factor). Also, don’t ignore workload fit: 7200RPM high-capacity drives are great for throughput, but if you mainly do light, random, or always-on “few reads, occasional writes,” you might get better economics or lower power/heat by looking at alternative models designed for that profile.

**Who it’s for:** datacentre/SMB server builders, companies doing backups or bulk storage on existing SAS hardware, and teams that value predictable enterprise compatibility over tinkering. **Who should skip it:** anyone trying to build a budget storage box from scratch or expecting “one drive to do everything” without matching the rest of the platform.